ide: Split out BMDMA code from ATA core

The ATA core is currently heavily intertwined with BMDMA code. Let's loosen
that a bit, so we can happily replace the DMA backend with different
implementations.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/hw/ide/piix.c b/hw/ide/piix.c
index 1c0cb0cda4..a6b5d92820 100644
--- a/hw/ide/piix.c
+++ b/hw/ide/piix.c
@@ -76,9 +76,10 @@ static void bmdma_map(PCIDevice *pci_dev, int region_num,
 
     for(i = 0;i < 2; i++) {
         BMDMAState *bm = &d->bmdma[i];
-        d->bus[i].bmdma = bm;
+        bmdma_init(&d->bus[i], bm);
         bm->bus = d->bus+i;
-        qemu_add_vm_change_state_handler(ide_dma_restart_cb, bm);
+        qemu_add_vm_change_state_handler(d->bus[i].dma->ops->restart_cb,
+                                         &bm->dma);
 
         register_ioport_write(addr, 1, 1, bmdma_cmd_writeb, bm);
 
@@ -99,7 +100,6 @@ static void piix3_reset(void *opaque)
 
     for (i = 0; i < 2; i++) {
         ide_bus_reset(&d->bus[i]);
-        ide_dma_reset(&d->bmdma[i]);
     }
 
     /* TODO: this is the default. do not override. */